oops, forgot the pressure event files

Author: FMMT666

examples/.gitignore

@@ -7,3 +7,5 @@
 !launchpad_rgb-fire.py
 !launchpad_rgb.py
 !launchpad_rgb-pulse.py
+!launchpad_pressure.py
+

examples/launchpad_pressure.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+#
+# Quick demo of the new, optional "pressure events" for supported Launchpads.
+# Works with: Pro
+# 
+#
+# FMMT666(ASkr) 7/2013..8/2020
+# www.askrprojects.net
+#
+
+import sys
+
+try:
+	import launchpad_py as launchpad
+except ImportError:
+	try:
+		import launchpad
+	except ImportError:
+		sys.exit("error loading launchpad.py")
+
+
+def main():
+
+	# only the original Pro for now
+	lp = launchpad.LaunchpadPro()
+	lp.Open( 0 )
+
+	while(True):
+		# enable the "pressure" feature by calling ButtonStateRaw with
+		# "returnPressure" set to True
+		events = lp.ButtonStateRaw( returnPressure = True )
+		if events != []:
+			# a dummy button code of 255 indicates that this is a pressure value
+			if events[0] == 255:
+				# Notice that the pressure value is not related to a specific button.
+				# If you hold two buttons at the same time, the bigger value will be returned.
+				print(" PRESSURE: " + str(events[1]) )
+			else:
+				# the standard button events
+				if events[1] > 0:
+					print(" PRESSED:  ", end='')
+				else:
+					print(" RELEASED: ", end='')
+				print( str(events[0]) + " " + str(events[1]) )
+
+	
+if __name__ == '__main__':
+	main()
+

launchpad_py/launchpad.py

@@ -1134,7 +1134,7 @@ def Reset( self ):
 	#-- method in the "Classic" Launchpad, which only returned [ <button>, <True/False> ].
 	#-- Compatibility would require checking via "== True" and not "is True".
 	#-------------------------------------------------------------------------------------
-	def ButtonStateRaw( self ):
+	def ButtonStateRaw( self, returnPressure = False ):
 		if self.midi.ReadCheck():
 			a = self.midi.ReadRaw()
 
@@ -1154,11 +1154,32 @@ def ButtonStateRaw( self ):
 			#  Additionally, it's interrupted by a read failure.
 			#  The 2nd one is simply cut. Notice that that these are commands usually send TO the
 			#  Launchpad...
+			#
+			# Reminder for the "pressure event issue":
+			# The pressure events do not send any button codes, it's really just the pressure,
+			# everytime a value changes:
+			#   [[[144, 55, 5, 0], 654185]]    button hit ("NoteOn with vel > 0")
+			#   [[[208, 24, 0, 0], 654275]]    button hold
+			#   [[[208, 127, 0, 0], 654390]]    ...
+			#   [[[208, 122, 0, 0], 654506]     ...
+			#   [[[208, 65, 0, 0], 654562]]     ...
+			#   [[[208, 40, 0, 0], 654567]]     ...
+			#   [[[208, 0, 0, 0], 654573]]      ...
+			#   [[[144, 55, 0, 0], 654614]]    button released ("NoteOn with vel == 0")
+			# When multiple buttons are pressed (hold), the biggest number will be returned.
+			#
+
 
 			if a[0][0][0] == 144 or a[0][0][0] == 176:
 				return [ a[0][0][1], a[0][0][2] ]
 			else:
-				return []
+				if returnPressure:
+					if a[0][0][0] == 208:
+						return [ 255, a[0][0][1] ]
+					else:
+						return []
+				else:
+					return []
 		else:
 			return []